Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B82—NANOTECHNOLOGY
  • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
  • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K38/00—Medicinal preparations containing peptides
  • A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
  • A61K38/12—Cyclic peptides, e.g. bacitracins; Polymyxins; Gramicidins S, C; Tyrocidins A, B or C
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/02—Inorganic compounds
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
  • A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
  • A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
  • A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
  • A61K47/12—Carboxylic acids; Salts or anhydrides thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
  • A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
  • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
  • A61K47/40—Cyclodextrins; Derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
  • A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
  • A61K47/6949—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes
  • A61K47/6951—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes using cyclodextrin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/0012—Galenical forms characterised by the site of application
  • A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/08—Solutions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents

Definitions

• the present invention relates to an aqueous pharmaceutical preparation of oligopeptides of the formula I containing an oligopeptide and an etherified ⁇ -cyclodextrin having a water solubility of greater than 1.8 mg / ml of water and the preparation of the aqueous pharmaceutical preparation.
• the oligopeptides of the formula I act as integrin inhibitors, in particular inhibiting the interactions of the ⁇ 3 or ⁇ 5 integrin receptors with endogenous ligands.
• the compounds show activity against the integrins ⁇ v ⁇ 3 , ⁇ v ⁇ 5 , ⁇ v ⁇ 6 and ⁇ II ⁇ 3 but also towards ⁇ v ⁇ 1 -, and ⁇ v ⁇ 8 receptors. Particular importance is attached to the blockade of ⁇ v ⁇ 3 and ⁇ v ⁇ 6 receptors. Particularly noteworthy here is the prevention of the stimulation of ⁇ v ⁇ 3 receptors by the endogenous ligand fibrinogen.
• oligopeptides are suitable for cancer therapy.
• oligopeptide cilengitide a cyclic pentapeptide with the chemical name cyclo- (Arg-Gly-Asp-D-Phe-NMe-Val). Cilengitide is already in Phase II clinical trials for the treatment of cancer.
• the oligopeptides of the formula I are preferably administered parenterally as an aqueous solution. Therefore, aqueous solutions of the oligopeptides are required for therapeutic applicability.
• the aqueous solutions used for this purpose Oligopeptides should be adapted to the respective therapeutic requirements, in particular they should contain the active ingredient in the therapy required amount and have a sufficient storage stability.
• the treatment of tumor diseases requires the parenteral administration of relatively large amounts of active ingredient.
• the oligopeptides are relatively soluble in water due to their peptide structure. Nevertheless, due to the relatively high levels of active ingredient required for therapy, relatively high volumes of drug solution are to be administered parenterally. These can then no longer simply be injected, but must be infused.
• Cilengitide for example, has a saturation solubility of about 19 mg / ml in physiological saline, and therefore can be safely administered parenterally for therapeutic use in physiological saline at a concentration of 15 mg / ml. If, for example, a dose of 1500 mg is required for therapy with cilengitide, the volume to be dispensed is 100 ml. Volumes of this size can no longer be readily injected and must be infused disadvantageously.
• the solubility of the oligopeptides is dependent on the pH of the particular solvent.
• solubility-increasing measure in question is therefore in particular the adjustment of the pH of the aqueous solvent to a value in which the oligopeptide has a higher solubility.
• the pH values required for this purpose are in an unphysiological range, which is extremely critical with regard to parenteral administration.
• a pH that greatly deviates from the physiological pH usually results accelerated peptide degradation in aqueous solution, so that such solutions are not sufficiently stable in storage.
• aqueous preparation suitable for parenteral administration with an increased proportion of oligopeptides of the formula I.
• the preparation should not contain any toxicologically harmful excipients and be stable for a long time.
• the preparation according to the invention can be stably stored at refrigerator temperature (2-8 ° C.) and even at room temperature (25 ° C., 60% rh) for a period of at least 6 months.
• the preparation of the invention is also at higher temperatures and humidities, for example at a temperature of 30 ° C, 60% r.F. over 3 months and from 40 ° C and 75% r.F. Stable over 4 weeks.
• ⁇ -Cydodextrin is an ⁇ -1,4-linked cyclic oligosaccharide consisting of 7 glucose units which has a saturation solubility of 1.8 mg / ml at room temperature in water.
• Each of the (anhydro) glucose units of ⁇ -cyclodextrin contains free hydroxyl groups in the 2-, 3-, and 6-positions, each of which can be etherified.
• etherified ⁇ -cyclodextrins are formed with increased water solubility compared to pure ⁇ -cyclodextrin.
• Suitable water-solubility enhancing hydroxyalkyl groups are, for example, hydroxyethyl or hydroxypropyl groups which can be introduced into the ⁇ -cyclodextrin by reaction of the ⁇ -cyclodextrin with the corresponding alkylene oxides, such as ethylene oxide or propylene oxide.
• the ether substituents contained are hydroxyethyl and / or hydroxypropyl groups.
• the aqueous pharmaceutical preparation contains partially etherified ⁇ -cyclodextrin, i. ⁇ -cyclodextrin in which only a part of the hydroxyl groups of the anhydroglucose units are etherified.
• etherified ⁇ -cyclodextrins with different degrees of substitution are formed.
• the degree of substitution relating to the ether substitution is hereinafter expressed as the molar degree of substitution (MS) and denotes the molar amount of alkylene oxide used per mole of (anhydro) glucose unit.
• the partially etherified ⁇ -cyclodextrins present in the aqueous pharmaceutical preparation have a molar degree of substitution between 0.2 and 10.
• a molar degree of substitution between 0.2 and 10
• etherified ⁇ -cyclodextrins having a molar degree of substitution between 0.2 and 2, particularly preferably having a molar degree of substitution between 0.5 and 0.8 and very particularly preferably having a molar degree of substitution of approximately 0.58-0.73.
• the aqueous solution according to the invention may contain as oligopeptide any of the oligopeptides encompassed by the above general formula I.
• the aqueous pharmaceutical preparation contains as oligopeptide cyclo (NMeArg-Gly-Asp-D-Phe-Val), cyclo (Arg-Gly-Asp-DPhe-NMeVal), cyclo (Arg-NMeGly-Asp-DPhe-Val ), Cyclo (Arg-Gly-NMeAsp-DPhe-Val) or cyclo- (Arg-Gly-Asp-NMeDPhe-Val).
• Cilengitide is particularly preferred. Clilengitide has, as already mentioned above, the chemical name cyclo- (Arg-Gly-Asp-D-Phe-NMe-Val).
• an isotonizing agent preferably a physiological acceptable salt, such as sodium or potassium chloride, or a physiologically acceptable polyol or a sugar, such as glucose or glycerol or mannitol, in an amount required for isotonization.
• the aqueous preparation according to the invention may contain further physiologically acceptable excipients, such as Antioxidants such as ascorbic acid or glutathione, preservatives such as phenol, m-cresol, methyl or propylparaben, chlorobutanol, thiomersal or benzalkonium chloride, or other stabilizers, scaffolds and solubilizers such as polyethylene glycols (PEG), e.g. PEG 3000, 3350, 4000 or 6000 or dextrans included.
• Antioxidants such as ascorbic acid or glutathione
• preservatives such as phenol, m-cresol, methyl or propylparaben, chlorobutanol, thiomersal or benzalkonium chloride, or other stabilizers, scaffolds and solubilizers such as polyethylene glycols (PEG), e.g. PEG 3000, 3350, 4000 or 6000 or dextrans included.
• PEG polyethylene glycol
• buffers can be present in the aqueous preparation according to the invention, it being possible in principle to use all physiologically compatible substances which are suitable for setting the desired pH. If a buffer substance is contained, it is contained in a concentration of 5 mmol / l to 50 mmol / l, preferably in a concentration of 10 to 20 mmol / l. Citrate buffer or phosphate buffer are preferred as the buffer. Suitable phosphate buffers are solutions of the mono- and / or di-sodium and potassium salts of phosphoric acid, such as disodium hydrogen phosphate or potassium dihydrogen phosphate, and mixtures of sodium and potassium salts, such as mixtures of disodium hydrogen phosphate and potassium dihydrogen phosphate.
• the aqueous preparation has a pH of 5 to 8, preferably a pH of 5.6 to 7.4, more preferably a pH of 6 to 7.2.
• the osmolality is preferably 250 to 350 mOsmol / kg.
• the aqueous preparation can thus be administered largely painless directly intravenously or intraarterially.
• the aqueous pharmaceutical preparation contains 20 to 120 mg / ml cilengitide and 15 to 25 wt .-% hydroxypropyl- ⁇ -cyclodextrin having a molar degree of substitution of 0.5 to 0.8.
• the aqueous pharmaceutical preparation contains about 80 mg / ml cilengitide and about 20% by weight of 2-hydroxypropyl- ⁇ -cyclodextrin having a molar degree of substitution of about 0.58-0.73.
• the aqueous preparation can be prepared by sequentially dissolving the substances contained in the preparation in water.
• the cyclodextrin ether is first dissolved in water and then the oligopeptide and optionally the other auxiliaries added.
• the invention therefore also provides a process for the preparation of the aqueous pharmaceutical preparation according to the invention, which comprises first dissolving the ⁇ -cyclodextrin ether in water and then adding the active ingredient and optionally the other auxiliaries.
• the solution containing the particular oligopeptide, the ⁇ -cyclodextrin ether and optionally the further auxiliaries is adjusted to a pH of 5 to 8. Then it is sterile filtered.
• the indicated amount of 2-hydroxypropyl- ⁇ -cyclodextrin was dissolved with stirring in about 90% of the indicated amount of water for injections, the indicated amount of oligopeptide was added and, after obtaining a clear solution, the remaining solvent was added.
• the resulting solution was sterile filtered, filled in 6 ml vials with 2 ml of solution, sealed with plugs and crimped.
• Example 4 The preparation according to Example 4 and an analogously prepared preparation containing 15 mg / ml cilengitide in isotonic saline solution (0.9% NaCl) were tested in shelf life studies.
• the aqueous preparations were stored at different temperatures, outsourced at certain times and investigated by suitable analytical methods. Possible instabilities are expressed in oligopeptides in aqueous solution primarily in the formation of rearrangement and hydrolysis products.
• the decomposition products still carry the same chromophores and can be detected as the starting material by HPLC-UV. The results are shown in Tables 4 to 6.
• Table 4 Stability data at 2-8 ° C, 26 weeks composition Concentration Cilengitide [mg / ml] (Start) Cilengitide [%] Pollution 1 [%] * Contamination 2 [%] Pollution 3 [%] isotonic NaCl 15 mg / ml 100.67 0.48 (start 0.43) ⁇ 0.05 ⁇ 0.05 2-hydroxypropyl- ⁇ -cyclodextrin 80 mg / ml 99.13 ⁇ 0.05 ⁇ 0.05 ⁇ 0.05 * Contamination 1 is at max. 2% specified.
• oligopeptide is contained in the preparation according to Example 3 in more than 5-fold higher concentration than in the preparation in isotonic saline, containing the ⁇ -Cycoldetrinether formulation according to Example 3 has a similar high stability as the preparation in isotonic saline solution.
• the prepared preparations were visualized by means of a light source in front of a dark wall according to Ph.Eur. examined for particles.
• the content and purity were determined by means of an HPLC-UV method at a wavelength of 215 nm.
• an RP 18 phase was used for the separation.
• the eluent used was a buffer with a pH of 3.6, consisting of sodium dihydrogen phosphate and phosphoric acid, which was mixed to the same proportion with acetonitrile. there has been a Gradientelution performed with different proportions of additional acetonitrile.

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• 2002
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• 2003
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